■ GENERAL DESCRIPTION

ELM99xxxA series is CMOS voltage regulator providing large current. It consists of devices including reference voltage source, error amplifier, low resistance output transistor, short-circuit protection circuit, output voltage setting resistor, chip-enable circuit. Output voltage is fixed internally with high accuracy. ELM99xxxA provides excellent characteristics, such as small input-output voltage difference due to low resistance output transistor, high load stability due to high gain error amplifier. The chip-enable function is available in three selections, no-chip enable function, active-low (“L” active) and active-high (“H” active).
The package is SOT-89-3 or SOT-89-5. SOT-89-5 is used for chip enable version.

■ FEATURES

・ Maximum output current : 300mA (Intenal current limiter operates in case load current exceeds 300mA.)
・ High accuracy of output voltage : ± 2.0%
・Small input-output voltage differential : TYP. 140mV (ELM9930xA IOUT=40mA)
・ Low stand-by current consumption : TYP. 0.1 μ A (ELM99xx3A)
・High load stability : TYP. 5mV (1mA ≦ Iout ≦ 100mA)
・High input stability : TYP. 0.15%/V (ELM9930xA IOUT=40mA)
・ Output voltage range : 2.0V～ 6.0V ( 0.1V steps )
・ Short-circuit current limiter : TYP. 70mA (VOUT=0V)
・ Chip-enable pin available : “L”active ELM99xx2A, “H”active ELM99xx3A

■ APPLICATION

・ Cellular telephones ・ Palmtops
・ Laptop and notebook computers ・ cameras and video recorders
・ Reference voltage sources ・ Battery-operated devices
・PCMCIA cards